10011202220221 has 2 divisors, whose sum is σ = 10011202220222. Its totient is φ = 10011202220220.

The previous prime is 10011202220219. The next prime is 10011202220263. The reversal of 10011202220221 is 12202220211001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9970507227321 + 40694992900 = 3157611^2 + 201730^2 .

It is a cyclic number.

It is not a de Polignac number, because 10011202220221 - 2¹ = 10011202220219 is a prime.

Together with 10011202220219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 10011202220195 and 10011202220204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10011202220821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005601110110 + 5005601110111.

It is an arithmetic number, because the mean of its divisors is an integer number (5005601110111).

Almost surely, 2^{10011202220221} is an apocalyptic number.

It is an amenable number.

10011202220221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10011202220221 is an equidigital number, since it uses as much as digits as its factorization.

10011202220221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10011202220221 its reverse (12202220211001), we get a palindrome (22213422431222).

The spelling of 10011202220221 in words is "ten trillion, eleven billion, two hundred two million, two hundred twenty thousand, two hundred twenty-one".